>>94027887They tried to make somewhat realistic humans with the current technology of the time. Ogre Fiona ended up looking better because she's not supposed to be human. You know what a human is supposed to look like and the characters from Shrek ain't it, but you can easily dismiss anything that's not quite right with Ogre Fiona as her being not human, and thus comparatively more attractive than her human form.
Also, T H I C C.